Global Patent Index - EP 0786810 B1

EP 0786810 B1 20020807 - Substrate potential detecting circuit

Title (en)

Substrate potential detecting circuit

Title (de)

Detektorschaltung für Substrat-Potential

Title (fr)

Circuit détecteur de potentiel de substrat

Publication

EP 0786810 B1 20020807 (EN)

Application

EP 97101113 A 19970124

Priority

JP 1152996 A 19960126

Abstract (en)

[origin: EP0786810A1] The disclosed substrate potential detecting circuit can reduce both the power consumption and the pattern area thereof. The substrate potential detecting circuit comprises: a series circuit composed of a plurality of same-conductivity type MOS transistors (21, ... 2n). Each transistor has a source terminal connected to a substrate terminal thereof and a drain terminal connected to a gate terminal thereof. Further, the channel widths of all the MOS transistors are determined equal to each other and so selected that all the transistors can be operative in a sub-threshold region, respectively. <IMAGE>

IPC 1-7

H01L 27/02; G05F 3/20; G11C 5/14

IPC 8 full level

G01R 19/165 (2006.01); G05F 3/20 (2006.01); H01L 21/8238 (2006.01); H01L 27/02 (2006.01); H01L 27/092 (2006.01); H03K 17/30 (2006.01); H03K 19/094 (2006.01)

CPC (source: EP KR US)

G05F 3/205 (2013.01 - EP US); H01L 21/18 (2013.01 - KR); H01L 27/0222 (2013.01 - EP US)

Citation (examination)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0786810 A1 19970730; EP 0786810 B1 20020807; DE 69714486 D1 20020912; DE 69714486 T2 20030508; JP H09205153 A 19970805; KR 100261955 B1 20000715; KR 970060422 A 19970812; US 5936436 A 19990810

DOCDB simple family (application)

EP 97101113 A 19970124; DE 69714486 T 19970124; JP 1152996 A 19960126; KR 19970001884 A 19970123; US 78771197 A 19970124